151638031 has 8 divisors (see below), whose sum is σ = 160308720. Its totient is φ = 143036352.

The previous prime is 151638029. The next prime is 151638041. The reversal of 151638031 is 130836151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 151638031 - 2¹ = 151638029 is a prime.

It is a super-2 number, since 2×151638031² = 45988184891113922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151638041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12700 + ... + 21553.

It is an arithmetic number, because the mean of its divisors is an integer number (20038590).

Almost surely, 2^151638031 is an apocalyptic number.

151638031 is a deficient number, since it is larger than the sum of its proper divisors (8670689).

151638031 is a wasteful number, since it uses less digits than its factorization.

151638031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34505.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 151638031 is about 12314.1394746040. The cubic root of 151638031 is about 533.2563620256.

It can be divided in two parts, 1516380 and 31, that added together give a triangular number (1516411 = T₁₇₄₁).

The spelling of 151638031 in words is "one hundred fifty-one million, six hundred thirty-eight thousand, thirty-one".